Factor (x + y)^2 - 25

Question

not really sure how to factor this and i have more questions like this

Answer 1

The method to this can match that of the Foil Method. (First, Outside, Inside, Last)

 

(x+y)(x+y)-25

 

(x^2)+(xy)+(xy)+(y^2)-25

 

(x^2)+2xy+(y^2)-25=0